How Does the safeTransferFrom Function Differ in ERC-1155?

ERC-1155's safeTransferFrom includes a mandatory check that ensures the recipient address is a smart contract capable of handling the received tokens. If the recipient is a contract, it must implement a specific onERC1155Received function.

This prevents tokens from being accidentally sent to a contract that cannot interact with them, which would render the tokens permanently inaccessible (burned).